<template>
  <a-layout>
    <a-layout-content :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }">
      <h3 v-if="docTree.length===0">对不起,找不到相关文档</h3>
      <a-row>
        <a-col :span="6">
          <a-tree
              v-if="docTree"
              :tree-data="docTree"
              @select="onSelect"
              :replaceFields="{title: 'name', key: 'id', value: 'id'}"
              :defaultExpandAll="true"
              :defaultSelectedKeys="defaultSelectedKeys"
          >
          </a-tree>
        </a-col>
        <a-col :span="18">
          <div>
            <h2>{{ doc.name }}</h2>
            <div>
              <span>阅读数：{{ doc.viewCount }}</span> &nbsp; &nbsp;
              <span>点赞数：{{ doc.voitCount }}</span>
            </div>
            <a-divider style="height: 2px; background-color: #9999cc"/>
          </div>
          <div class="wangeditor" :innerHTML="html"></div>
          <div class="voit-div">
            <a-button type="primary" shape="round" :size="'large'" @click="voit">
              <template #icon><LikeOutlined /> &nbsp;点赞：{{doc.voitCount}} </template>
            </a-button>
          </div>
        </a-col>
      </a-row>
    </a-layout-content>
  </a-layout>
</template>

<script lang="ts">
import { defineComponent, onMounted, ref, createVNode } from 'vue';
import axios from 'axios';
import {message} from 'ant-design-vue';
import {Tool} from "@/utils/tool";
import {useRoute} from "vue-router";

export default defineComponent({
  name: 'DocConent',
  setup() {
    const route = useRoute();
    const docs = ref();
    const html = ref();
    const defaultSelectedKeys = ref();
    defaultSelectedKeys.value = [];
    // 当前选中的文档
    const doc = ref();
    doc.value = {};

    const docTree = ref(); // 一级文档树，children属性就是二级文档
    docTree.value = [];

    /**
     * 文档内容查询
     **/
    const handleQueryContent = (id:any) => {

      axios.get("/doc/findContent/" + id).then((response) => {

        const data = response.data;
        if (data.success) {
          html.value = data.content;
        }
      });
    };

    /**
     * 数据查询
     **/
    const handleQuery = () => {
      doc.value.ebookId = route.query.ebookId
      axios.get("/doc/all" , {
        params: doc.value
      }).then((response) => {
        const data = response.data;
        if (data.success) {
          docs.value = data.content;

          docTree.value = [];
          docTree.value = Tool.array2Tree(docs.value, 0);

          if (Tool.isNotEmpty(docTree.value)) {
            defaultSelectedKeys.value.push(docTree.value[0].id);
            handleQueryContent(docTree.value[0].id);

            // 初始选中的文档
            doc.value = docTree.value[0];

          }
        }
      });
    };



    const onSelect = (selectedKeys: any, info: any) => {
      if (Tool.isNotEmpty(selectedKeys)) {
        handleQueryContent(selectedKeys[0]);
        // 选中某一节点时，加载该节点的文档信息
        doc.value = info.selectedNodes[0].props;
      }
    };

    // 点赞
    const voit = () => {
      axios.get('/doc/vote/' + doc.value.id).then((response) => {
        const data = response.data;
        if (data.success) {
          doc.value.voitCount++;
        } else {
          message.error(data.message);
        }
      });
    };

    onMounted(() => {
      handleQuery();
    });

    return {
      docTree,
      html,
      defaultSelectedKeys,
      onSelect,
      doc,
      voit,
    }
  }
});
</script>

<style>
/* wangeditor默认样式, 参照: http://www.wangeditor.com/doc/pages/02-%E5%86%85%E5%AE%B9%E5%A4%84%E7%90%86/03-%E8%8E%B7%E5%8F%96html.html */
/* table 样式 */
.wangeditor table {
  border-top: 1px solid #ccc;
  border-left: 1px solid #ccc;
}
.wangeditor table td,
.wangeditor table th {
  border-bottom: 1px solid #ccc;
  border-right: 1px solid #ccc;
  padding: 3px 5px;
}
.wangeditor table th {
  border-bottom: 2px solid #ccc;
  text-align: center;
}

/* blockquote 样式 */
.wangeditor blockquote {
  display: block;
  border-left: 8px solid #d0e5f2;
  padding: 5px 10px;
  margin: 10px 0;
  line-height: 1.4;
  font-size: 100%;
  background-color: #f1f1f1;
}

/* code 样式 */
.wangeditor code {
  display: inline-block;
  *display: inline;
  *zoom: 1;
  background-color: #f1f1f1;
  border-radius: 3px;
  padding: 3px 5px;
  margin: 0 3px;
}
.wangeditor pre code {
  display: block;
}

/* ul ol 样式 */
.wangeditor ul, ol {
  margin: 10px 0 10px 20px;
}

/* 和antdv p冲突，覆盖掉 */
.wangeditor blockquote p {
  font-family:"YouYuan";
  margin: 20px 10px !important;
  font-size: 16px !important;
  font-weight:600;
}

/* 点赞 */
.voit-div {
  padding: 15px;
  text-align: center;
}

/* 图片自适应 */
.wangeditor img {
  max-width: 100%;
  height: auto;
}

/* 视频自适应 */
.wangeditor iframe {
  width: 100%;
  height: 400px;
}
</style>
